nvent SRF3500N Owner's manual

SRF3500N
Brand
nvent
Model
SRF3500N
Type
Owner's manual

nVent SRF3500N surge reduction filter offers high-performance protection for critical service entrances with its advanced Spark Gap and Transient Discriminating technologies. Ideal for exposed applications, it reduces let-through voltage and rate-of-voltage rise, safeguarding electronic equipment. With direct input-to-output connection, it boasts extreme reliability and simplified design. Comprehensive front panel status and internal diagnostic LEDs provide clear indication of protection status.

nVent SRF3500N surge reduction filter offers high-performance protection for critical service entrances with its advanced Spark Gap and Transient Discriminating technologies. Ideal for exposed applications, it reduces let-through voltage and rate-of-voltage rise, safeguarding electronic equipment. With direct input-to-output connection, it boasts extreme reliability and simplified design. Comprehensive front panel status and internal diagnostic LEDs provide clear indication of protection status.

SURGE REDUCTION FILTER N-SERIES, THREE PHASE, 500 A
CATALOG NUMBER
SRF3500N
CERTIFICATIONS
FEATURES
High-performance protection incorporating Spark Gap and Transient Discriminating (TD) technologies
High surge rating ideal for exposed critical service entrance applications
Reduces let-through voltages and rate-of-voltage rise (dv/dt) and helps provide optimum protection for electronic
equipment
Extreme reliability and simplified design with direct connection from input to output
Comprehensive front panel status and internal diagnostic LEDs
PRODUCT ATTRIBUTES
Nominal System Voltage (Un): 220/380 - 240/415 VAC
Distribution System: 3Ph Y 4W+G
System Compatibility: TN-C;TN-C-S;TN-S;TT
Rated Load Current (IL): 500 A
Frequency: 50 – 60 Hz
Short Circuit Current Rating (SCCR): 43 kA
Heat Dissipation: 215 W
Rate of Voltage Rise (dV/dt): 10 V/µs Max
Filtering: -40 dB @ 100 kHz
Input Connection: 10 mm Stud
Output Connection: 10 mm Stud
Technology: Spark Gap;In-line series low pass sine wave filter;TD technology with thermal disconnect (50 kA 8/20us
secondary stage)
Protection Modes: All modes protected
Enclosure Material: Metal
Enclosure Rating: IP 32
Mounting: Wall mount
Status Indication: Front panel LED;Internal diagnostic primary and secondary protection LEDs;Change-over contact (Form
C dry), 250 VAC/30 VDC/5 A, 4 kV isolation
Width: 31 1/2"
Height: 39.370"
Depth: 11.810"
Unit Weight: 168.900 lb
Complies With: IEC® 61643-11 Class I, Class II;ANSI®/IEEE® C62.41.2-2002 Cat A, Cat B, Cat C;ANSI®/IEEE® C62.41.2-
2002 Scenario II, Exposure 3, 100 kA 8/20 μs, 10 kA 10/350 μs
ADDITIONAL PRODUCT DETAILS
IEC 61643-11 Annex A specifies Max Continuous Operating Voltage (Uc) as 255 VAC.
IEC 61643-11 test procedure limits maximum Impulse Current (Iimp) to 10kA due to internal product safety fusing.
IEC 61643-11 recommends a maximum preferred value for Nominal Discharge Current (In) of 20 kA.
IEC 61643-11 Temporary Overvoltage tests are passed in withstand mode.
Upstream overcurrent protection not exceeding Rated Load Current (IL) shown above must be installed ahead of the surge
reduction filter.
DIAGRAMS
2
AS1768 Ratings
Part Number SRF363N SRF3125N SRF3250N SRF3500N SRF3800N
Max Continuous
Operating Voltage 310 VAC
Maximum Surge
Current, L-N 130 kA 8/20 μs 50 kA 10/350 μs
Maximum Surge
Current, N-PE 130 kA 8/20 μs 50 kA 10/350 μs
Voltage Protection
Level (L-N)
200 V @ 3 kA 8/20
μs 250 V @ 20 kA
8/20 μs
300 V @ 3 kA 8/20
μs 380 V @ 20 kA
8/20 μs
300 V @ 3 kA 8/20
μs 500 V @ 20 kA
8/20 μs
320 V @ 3 kA 8/20
μs 550 V @ 20 kA
8/20 μs
320 V @ 3 kA 8/20
μs 550 V @ 20 kA
8/20 μs
IEC 61643-11 Ratings
Part Number SRF363N SRF3125N SRF3250N SRF3500N SRF3800N
Max Continuous Operating Voltage (Uc) 255 VAC
Temporary Overvoltage, L-N 442 VAC 2 hours
Temporary Overvoltage, N-PE 1200 VAC 200 ms
Impulse Current (Iimp) 10kA 10/350 μs
Voltage Protection level (Up), L-N @ Iimp 450 V 500 V 550 V
Nominal Discharge Current (In) 20kA 8/20 μs
Voltage Protection level (Up), L-N @ In 450 V 500 V 650 V
Voltage Drop 0.1 % Max
WARNING
nVent products shall be installed and used only as indicated in nVent's product instruction sheets and training materials.
Instruction sheets are available at www.nvent.com and from your nVent customer service representative. Improper
installation, misuse, misapplication or other failure to completely follow nVent's instructions and warnings may cause
product malfunction, property damage, serious bodily injury and death and/or void your warranty.
North America
+1.800.753.9221
Option 1 – Customer Care
Option 2 – Technical Support
Europe
Netherlands:
+31 800-0200135
France:
+33 800 901 793
Europe
Germany:
800 1890272
Other Countries:
+31 13 5835404
APAC
Shanghai:
+ 86 21 2412 1618/19
Sydney:
+61 2 9751 8500
© 2022 nVent. All nVent marks and logos are owned or licensed by nVent Services GmbH or its affiliates. All other trademarks are the property of
their respective owners.
nVent reserves the right to change specifications without notice.
Our powerful portfolio of brands:
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nvent SRF3500N Owner's manual

SRF3500N
Brand
nvent
Model
SRF3500N
Type
Owner's manual

nVent SRF3500N surge reduction filter offers high-performance protection for critical service entrances with its advanced Spark Gap and Transient Discriminating technologies. Ideal for exposed applications, it reduces let-through voltage and rate-of-voltage rise, safeguarding electronic equipment. With direct input-to-output connection, it boasts extreme reliability and simplified design. Comprehensive front panel status and internal diagnostic LEDs provide clear indication of protection status.

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